What gear is everyone running

And just to add my experience, once they have been run and found to whine, I have never had much success getting rid of the whine. And I have built hundreds and hundreds of rears. From cars and pick-ups, to graintrucks, and a few hiway tractors and other stuff.
Rusty is right, the pattern don't lie.
And Md is also right, some gears just won't pattern right